Improvement in lifting-jack



.uiten tetes- @anni ffies.

SAMUEL PERRY, OE-SEAEORD; DELAWARE, AssIeNoR 'ro HIMSEEE END JOHN' L,coULRoRN.

Letters .Patent No. 77,756, datedMay 12, 1868.

IMPROVEMENT IN LETTING-JACK.

To ALL WHOM IT M AY CONCERN:

Be it known -that I, SAMUEL PERRY, of' Seaford, inthe countyof Sussex,and in the .State of Delaware,

have invented certain new and usefulImprovemeuts in .Track-Lifters; anddo hereby declare that the lfollowing is a'fnll, clear, and .exactdescription thereof, reference being hadto the accompanying drawings,and the letters of reference marked thereon. In the annexed drawings,making a. part of this specification- -A represents a base, consistingof' a board orzmetal of suitable size, and B represents a vertical post,y secured to or in the .base,'A.

Thepost B has a. slot -through it, in which is pivoted a lever, D,and'has an arm, C, framed into it, near the top, and securely braced;t'has also a block, c, pinned or bolted toits fnntfside, for thepurposeof arest and guide for the'v-ertical movable bar E, I

The arm Cvisprovided with aslot, .for the ratchet-bar F vto work in asaguide, and has pivoted to it the loop d, which works or catches in theteethof thera'tchet-bur F, and holdsit'in any given position orelevation.

E represents 'a movable vertical barprovide d with a slot, in which ispivoted'one endet" the lever` D, for, the purpose of a guide to theratchet-bar F, to hold itin 'a vertical position.

A loop, e, is pivoted tothe movable bar E, andembraces and works in theratchet-bar F;

The ratchet-bar F is suspended by meansof thetwo loops, rl and e,'a.ndis' provided with a catch or hoo'k, z, at the` bottom, which is designedto work under a railroad. or other track, or, in fact, any-object lyingnear the ground, for the purpose of 'raising the same. I i i l I It willbe seen that theoperator, by pressing the end of* the lever-D downward,the vertical bar E,'witb the loop e, is raised, and thereby theratchetbar F and its hooliva: is elevated, and there held by means ofIthe l stationary loop d, and so on, by repeating the above, untilthe'object is raised-to theide'sired'elcvatio-n. It will be seen thatthis device may as well be used for a ,lifting-jack f or wagons, or anyof the uses that n lifting-jack is put to, by letting the object rest-onthe top of the ratchet-bar F.

Having thus fully described my invention, what I claim' as new, anddesire to secure' by Letters Patent, is- The arrangement of. thestaudardi, .with its slotted arm C, through which passes the rack F,'andto which isipivoted a loo-p, d, saidrack, beingoperated by the lever Dpassing through the standard, and 'kept in'positon bythe bar E and blocke, all constructed and used as specied. l

In testimony that I claiinfthe foregoing, I have hereunto lset my hand,thislst'day ofDeeeuiber, 1867.

i I SAMUEL PERRY. Witnesses: JOHN L. ConLBoRN,

A;..N. Mann.

